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Replies to Equalizer Info commands
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Doug - K3TZR
Member
When I send an "eq rx info" command to the radio I receive the expected response:
SCCB288B6|eq rx mode=1 63Hz=10 125Hz=10 250Hz=10 500Hz=10 1000Hz=10 2000Hz=10 4000Hz=10 8000Hz=10
but I also receive the following:
SCCB288B6|eq rxsc mode=1 63Hz=0 125Hz=0 250Hz=0 500Hz=0 1000Hz=0 2000Hz=0 4000Hz=0 8000Hz=0
What is the significance of the "rxsc" reply? Similarly, two replies are received for the "eq tx info" command, one with "tx" and one with "txsc".
SCCB288B6|eq rx mode=1 63Hz=10 125Hz=10 250Hz=10 500Hz=10 1000Hz=10 2000Hz=10 4000Hz=10 8000Hz=10
but I also receive the following:
SCCB288B6|eq rxsc mode=1 63Hz=0 125Hz=0 250Hz=0 500Hz=0 1000Hz=0 2000Hz=0 4000Hz=0 8000Hz=0
What is the significance of the "rxsc" reply? Similarly, two replies are received for the "eq tx info" command, one with "tx" and one with "txsc".
0
Answers
-
When we first created the EQ it was implemented in our audio codec chip and the API commands and responses had a range of 0 to 20 for the EQ levels. In v1.4 we moved the location of the EQ into our DSP co-processor and it made more sense to use the actual values of the EQ which have a range from -10 to 10.
We did not want to break the API for developers that had already written EQ controls so we left the old API command which is "eq rx" and added a new command/status which is the "eq rxsc". Both commands and statuses are valid with the "eq rx" command using the old 0 to 20 range and the new "eq rxsc" command using the -10 to 10 range.
The same applies to the TX EQ.0 -
Thanks Ed,
I suspected something like that.
I'm primarily looking forward from 1.4 so when I see the "sc" form coming from the Radio I'll use the "sc" form when sending commands.
To afford some measure of backward compatibility, when I only see the non-"sc" form coming from the Radio, I'll use the non-"sc" form in commands I send to the Radio.0 -
Sounds like a good plan. That's very close to what we do in SmartSDR.0
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